Angle eject vs top eject
If your lever gun usage is more along the line of "rifleman" type shooter disregard the following...if controlled, accurate fire from a top eject rifle, read on.
I have scoped both types and everyone here is right, if you want to cleanly eject empties then AE is the only one you will ever be satisfied using...however...I will use a top eject with a scope on it every time if a poorly aimed shot is the alternative. the fact is, that top eject rifles will still eject the round if you have a full sized scope over the bolt...the case will come out of the chamber, slide back until it clears the chamber throat and then come up under the scope enough to disengage from the extractor hooks... it is now loose and lays in the top opening, now a simple slight roll of the rifle before chambering the next round will remove it from the gun...one well aimed round is worth 20 quick poorly aimed rounds in my book.
Most of the Winchester levers that I have scoped are all "turn of the century" (1886, a couple 1894's and a couple 92's) guns manufactured long before AE was a thing.
There is another "work-around" for top eject rifles that improve their "shootability" for eyesight challenged shooters that removes any issues with top eject, and that is to mount the much shorter Red Dot's or similar bodies sighting devises. They will very comfortably mount far enough back over the hammer that ejection happens long before the round gets to it. Thumb manipulation of the hammer is restricted a bit but still completely doable.
Again...one good shot with any rifle is more desirable that 20 blurred shots any day.